#Behavior

A wave of recent research is challenging long-held beliefs about Attention Deficit Hyperactivity Disorder (ADHD), questioning whether the condition is truly a lifelong, biologically fixed disorder and whether the medical model that has dominated diagnosis and treatment actually serves those affected. With global ADHD diagnosis rates soaring and stimulant prescriptions at record levels—mirrored by rising numbers in Thailand—the debate over what ADHD is and how best to help children and adults affected is more urgent than ever. These new perspectives could have a profound impact not only on clinical practice in the West but on the evolving approach to ADHD in Thailand, where both awareness and skepticism about the condition are growing rapidly.

Every day, people in Thailand—like in many countries—make decisions, big and small, often based on the information that comes most readily to mind. Whether it’s choosing a school, selecting healthcare options, or even deciding which road to take during rainy season, human judgment is rarely as objective as we might assume. One powerful but often unnoticed force at play is “availability bias,” a psychological phenomenon that shapes thinking and behavior based on the information most easily recalled, rather than all relevant facts [Simply Psychology], [Encyclopedia Britannica].